Found in a 90s Radio Electronics, this circuit uses an AD590 or AD592 for remote temperature transmission. The circuit produces a voltage of 1 mV for each degree centigrade.
This circuit is from a Radio Electronics from March 1970. The crystal depends on the frequency at which...
This circuit detects magnetic fields through a sensor coil, providing a signal in its function. The...
Described in an article that taught how to assemble the complete intercom in Radio Electronics magazine...